vcl: osx: let VCL clean up before exitingHEADmaster

On macOS NSApplicationMain() never returns, but instead calls exit()
internally when the application is done. Calling [NSApp stop:] or
NSApplication's terminate: selector and returning NSTerminateNow
from applicationShouldTerminate will pretty immediately end up
calling exit() in Cocoa frameworks. That doesn't let LO clean up
after itself or even de-init the VCL.

Instead always return NSTerminateCancel from applicationShouldTerminate
to allow the LO Application to process the PrivateDoShutdown event
and exit the application's main loop. Then we can call [NSApp stop:]
to allow NSApplicationMain() to kill us. This lets all the normal
LO de-init code at the end of ImplSVMain/ImplSVMainRun actually
execute prior to termination.

Change-Id: I57b4cd14599fda0fa5c174956a36e0a8e6464fa1
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/200715
Tested-by: Jenkins
Reviewed-by: Dan Williams <dcbw@libreoffice.org>

0 files changed, 0 insertions, 0 deletions